Add function to compute addresses of labels in instruction list

wip-duuqnd/user-side-compiler/instruction.lisp

@@ -96,6 +96,14 @@
                                  '(branching-mixin)))
                            ((%opcode :allocation :class :initform ,code)))))))
 
+(defun fix-label-addresses-in-instruction-list (instruction-list origin)
+  (loop :with address := origin
+        :for obj :in instruction-list
+        :if (typep obj 'label)
+          :do (setf (address obj) address)
+        :else
+          :do (incf address (instruction-length obj))))
+
 ;;; Testing
 
 (define-instruction "TXA" nil (:implied 0))